Home / 205,079.36-307,588.32-170,242.88

Finding the Fourth Proportional to 205,079.36, 307,588.32 and 170,242.88

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Solution

The fourth proportional to 205,079.36, 307,588.32 and 170,242.88 is: 255,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,079.36 : 307,588.32 = 170,242.88 : x
  2. Step 2: Convert to fraction form
    205,079.36/307,588.32 = 170,242.88/x
  3. Step 3: Cross multiply
    205,079.36x = 307,588.32 × 170,242.88
  4. Step 4: Simplify right side
    205,079.36x = 52,364,721,451.16
  5. Step 5: Solve for x
    x = 52,364,721,451.16/205,079.36
  6. Step 6: Final answer
    x = 255,338.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.